taper pipe thread milling

[heavy metal]

Is it possible to thread mill taper pipe threads?

[bdyenter]

Heavy Metal:

Yes it is possible. Both Exterior and Interior NPT threads. I am not sure what size you want to do, nor do I know what type of threadmill that you have access to, but this is an example of a 2"-11 1/2 I.D NPT thread using a 5/8 diameter shank threadmill, with .82 cutting dia. The insert is a 21mm height -11 1/2 pitch , 4.7mm thick, and 12mm from back of insert to end of teeth . (The insert is specific to the pitch of thread.) So if you have a single point, this would not work for you. But single point thread milling can be done as well with some modification.


%
O1234
(X=0,Y=0 ORIGIN)
(NO TOOL RADIUS COMPENSATION D1=0)
T1M6
G90G0G54G17G43H1X0.Y0.Z1.9685S2338M3
G1Z-0.7674F196.9 M08
G91G01G41D1X0.3747Y-0.3747F6.6
G3X0.3747Y0.3747Z.0109I0.J0.37468F4.3
G3X-0.7494Y0.7500Z.0217I-0.75004J0.
G3X-0.7507Y-0.7500Z.0217I0.J-0.75071
G3X0.7507Y-0.7514Z.0217I0.75139J0.
G3X0.7521Y0.7514Z.0217I0.J.75207
G3X-0.3760Y0.3760Z.0109I-0.37603J0.
G1G40X-0.3760Y-0.3760F196.9
G1Z0.6739
G90X0.Y0.Z1.9685
M30
%


***I HAVE A PROGRAM YOU CAN USE TO THREADMILL ANY ID/OD THREAD GIVEN FROM A MANUFACTURER & DEALER OF THREADING INSERTS & TOOLS. I USE THEM ALL THE TIME. IT HAS A POST PROCESSER BUILT IN TO POST YOUR PROGRAM, SO JUST FOLLOW THE WIZARD AND CUT YOUR THREAD! I SENT IT TO YOUR PM.

[bdyenter]

See link below.....



http://www.carmex.com/downloads.php?instance_id=18



Left side of page, where it says Mill-Thread software.... click here, download and enjoy.

[keebler303]

You can also use an NPT thread mill.

http://www.kodiakcuttingtools.com/Th...T-Threads+242/

Matt

[peter.blais]

Yep, I got my pipethread mills from Frank at Maritool. I use them for larger pipe threads because I didn't spring for the gearbox. Thread milling is why I didn't bother with it.

[AWALTERS21]

HI,
JUST BROWSING AROUND AND SEE THAT YOU HAVE A TAPER THREaD MMILLING PROGRAM.WOULD YOU SHARE THIS WITH ME OR TELL ME WHERE I CAN GET IT
THANK YOU
awalters21@earthlink.net